Notholaena standleyi

This is one of the most common of the cheilanthoid ferns, usually found on igneous substrates.

Plant habit in King Canyon in the Tucson Mts., 2/20/04.

Plant habit after desiccation on Wind Mountain in the Cornudas Mts., 19 Mar 2006.

Adaxial leaf surface in Mars Canyon on the west side of the Organ Mountains, 9 Oct 2005.

Abaxial leaf surface on Wind Mountain, 19 Mar 2006.

Abaxial leaf surfaces showing within-site variation at lower Jacobson Canyon, Pinaleño Mountains, 6 May 2008. These plants are part of a research project by Carl Rothfels.

Adaxial view of a leaf in King Canyon, 2/20/04.

Abaxial view of part of a leaf in King Canyon, 2/20/04.

Plant habit in King Canyon, 2/20/04.